Question

I need a PHP script that reads the HTTP response code for each URL request.

something like

$headers = get_headers($theURL);
return substr($headers[0], 9, 3);

The problem is the get_headers() function is disabled at server level, as a policy.So it doesn’t work.

The question is how to get the HTTP response code for a URL?

Answer 1

If cURL is enabled, you can use it to get the whole header or just the response code. The following code assigns the response code to the $response_code variable:

$curl = curl_init();
curl_setopt_array( $curl, array(
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_URL => 'http://stackoverflow.com' ) );
curl_exec( $curl );
$response_code = curl_getinfo( $curl, CURLINFO_HTTP_CODE );
curl_close( $curl );

To get the whole header you can issue a HEAD request, like this:

$curl = curl_init();
curl_setopt_array( $curl, array(
    CURLOPT_HEADER => true,
    CURLOPT_NOBODY => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_URL => 'http://stackoverflow.com' ) );
$headers = explode( "\n", curl_exec( $curl ) );
curl_close( $curl );